I expect to have to build a deck and possibly a shop when I move in the next year or so and because I have to replace a porch on my current house I thought I'd get a framing nailer now. I am considering one of the Bostitch framers that has an attachment to allow it to handle metal connector nails in addition to the normal framing nails. They offer two versions: one that uses 33-degree, paper-collated nails and one that uses 22-degree, plastic-collated nails. Question one: is there an advantage to one method of collation over the other? I've read that the plastic ones sometimes suffer from flagging, i.e. leaving pieces of plastic stuck under the nail-head. This would be a problem on visible surfaces, such as railings and decking, wouldn't it? How big of a problem? On the other hand, plastic-collated nails seem to be more readily available in the local big boxes. Question two: is one angle significantly better than the other? Thanks.